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Re: Dumb Question on GCC
- From: Elfyn McBratney <elfyn at cygwin dot com>
- To: Martin Gainty <mgainty at hotmail dot com>
- Cc: cygwin at cygwin dot com
- Date: Tue, 1 Jul 2003 22:53:25 +0100
- Subject: Re: Dumb Question on GCC
- References: <Law10-OE47VlFvlRojT00011e7d@hotmail.com>
- Reply-to: cygwin at cygwin dot com
On Tue, 1 Jul 2003, Martin Gainty wrote:
> GCC SlpReg.c
> /cygdrive/h/DOCUME~1/ADMINI~1/LOCALS~1/Temp/ccwParH7.o(.text+0x11d):SLPReg.c
> : un
> defined reference to `_SLPOpen'
>
> My header file refers to function SLPOpen not _SLPOpen
> The .c file calls SLPOpen not _SLPOpen
Meaning? You declare and define that function? Or you declare a library
function? If the latter, you need to link in the library e.g.
$ gcc SlpReg.c -L/path/to/library/files -llib
(where the path after `-L' is searched for a library named `lib')
> Where does the leading underscore come from ?
> How do I shut it off the compiler from introducing leading _?
That's how the linker referrs to the symbol name.
Elfyn
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